A nurse is preparing to administer aripiprazole 160 mg IM to a client. Available is aripiprazole 400 mg/2 mL. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.8"]
Rationale:
Step by step calculation:
Determine the dosage required: 160 mg
Determine the concentration available: 400 mg/2 mL
Simplify the concentration:
400 mg/2 mL=200 mg/mL
Use the formula:
Volume (mL)=Required dose (mg)/Concentration (mg/mL)
Volume (mL)=160 mg/200 mg/mL
Calculate the volume:
Volume (mL)=0.8
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2.5"]
Explanation
Step by step calculation
Determinethedosagerequired:0.05g
Convertgramstomilligrams:
0.05g×1000mg/g=50mg
Determinetheconcentrationavailable:20mg/mL
Usetheformula:
Volume(mL)=Requireddose(mg)/Concentration(mg/mL)
Volume(mL)=50mg/20mg/mL
Calculatethevolume:
Volume(mL)=2.5
Correct Answer is ["0.04"]
Explanation
Step by step calculation:
Determinethedosagerequiredinmcg:40mcg
Understandtheconversionfactor:1mg=1000mcg
Usetheformula:
Weight(mg)=Weight(mcg)1000
Weight(mg)=40mcg/1000mcg
Calculatetheweight:
Weight(mg)=0.04
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